Nokia says it will have overcome problems of short battery life in multi-radio handsets to deliver its first dual-mode Wi-Fi-enabled 3G phone before the end of this year. However, smooth call handover from wireless LANs (WLANs) to cellular networks is not yet assured.
Wi-Fi-enabled mobiles could save firms money by routing calls through the nearest available wireless LAN. This could help to avoid expensive cellular tariffs, while allowing IP calls to be made ove...
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